摘要
为了改善具有参数不确定的能量回馈式主动悬挂系统的稳定性、减振性能以及能量回馈性能,对含摄动的系统模型进行了鲁棒控制器设计,并给出了系统的能量平衡条件.在MATLAB/SIMULINK下,对控制系统进行了仿真.结果表明,鲁棒控制器使得能量回馈式主动悬挂系统稳定;相比传统最优控制器,减振性能得到明显改善;控制作用力、悬挂动行程、轮胎动位移、车身加速度的均方根值分别降低了45.19%、52.15%、61.19%和15.79%;整个仿真过程回收能量1 831 J.
In order to improve the stability,vibration isolation and energy feedback performance of self-powered active suspension systems with parameter uncertainty for vehicles,a robust controller was designed for the system model with perturbation,and the energy equilibrium condition was given.The control system was simulated using MATLAB/SIMULINK.The results indicat that the robust controller made the self-powered active suspension system stable.Compared with traditional optimal controller,the vibration isolation performance was improved obviously.The root-mean-square values of the control force,suspension working space,dynamic tyre displacement,and vehicle body acceleration were reduced by 45.19%,52.15%,61.19%,and 15.79%,respectively.During the whole simulation process,an energy of 1 831 J was recycled.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2011年第4期572-578,共7页
Journal of Southwest Jiaotong University
基金
国家自然科学基金资助项目(10772152)
教育部博士点基金资助项目(200806130003)
西南交通大学牵引动力国家重点实验室开放基金资助
关键词
主动悬挂
能量回馈
鲁棒控制
能量平衡条件
摄动
active suspension
self-powered
robust control
energy balance
perturbation
